THE INFLUENCE OF PRESSURE GRADIENT ON THE TURBULENT BOUNDARY LAYER OVER A ROUGH SURFACE.

Abstract

The boundary layers produced on rough surfaces in adverse pressure gradients were investigated. The report contains experimental results obtained for a single surface roughness at three pressure conditions: one at constant pressure and two having adverse pressure gradients. The mean velocity profiles in the boundary layer were measured by both Pitot tubes and hot wires. The longitudinal turbulence intensities were measured with a hot wire. The pertinent boundary layer parameters were calculated and are presented. Results were compared with available smooth wall data. (Author)

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1965
Accession Number
AD0626086

Entities

People

  • John L. Power
  • Victor E. Scottron

Tags

DTIC Thesaurus Topics

  • Boundaries
  • Boundary Layer
  • Hot Wire
  • Layers
  • Pitot Tubes
  • Pressure Gradients
  • Roughness
  • Surface Roughness
  • Turbulent Boundary Layer
  • Wire

Fields of Study

  • Physics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Fluid Dynamics.